Carriers and OEMs are starting to address what is seen by many as the platform’s Achilles: rampant fragmentation and lagging upgrades. According to numbers released today on the Android Developer blog, fully 61.3 percent of Android devices are now running Android 2.2 (Froyo).

Just six months ago, the number of devices out there that had been upgraded to Froyo was under 20 percent. The next highest version of Android is 2.1 (Eclaire), which is still currently running on 21.9 percent of all Android devices.

The lag in upgrades has been a point of contention for users who buy new smartphones with promises from carriers and OEMs that their device will be upgraded to the latest version of the OS, only to be left waiting sometimes for months. 

Just a fraction of a percent (.02) of devices are now running Android 3.0 (Honeycomb), which is optimized for use as a tablet platform, and only 3 percent of Android phones are still running the original version of the platform, Android 1.5.

Check out the complete numbers at the official Android Developers blog here.